import {z} from 'zod'

export type GetApiApiStatsPidSpiderSidArgs = {page?: number | undefined, page_size?: number | undefined, start_date: string, end_date: string, offset?: number | undefined};

export type GetApiApiStatsPidSpiderSidOptions = {baseUrl?: string | undefined, Basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const jobsStats = z.object({total_jobs: z.number().int().optional(), waiting_jobs: z.number().int().optional(), running_jobs: z.number().int().optional(), stopped_jobs: z.number().int().optional(), completed_jobs: z.number().int().optional(), in_queue_jobs: z.number().int().optional(), error_jobs: z.number().int().optional()});

export const pagesStats = z.object({total_pages: z.number().int().optional(), scraped_pages: z.number().int().optional(), missed_pages: z.number().int().optional()});

export const statusCodesStats = z.object({status_200: z.number().int().optional(), status_301: z.number().int().optional(), status_302: z.number().int().optional(), status_401: z.number().int().optional(), status_403: z.number().int().optional(), status_404: z.number().int().optional(), status_429: z.number().int().optional(), status_500: z.number().int().optional()});

export const logsStats = z.object({total_logs: z.number().int().optional(), debug_logs: z.number().int().optional(), info_logs: z.number().int().optional(), warning_logs: z.number().int().optional(), error_logs: z.number().int().optional(), critical_logs: z.number().int().optional()});

export const fieldCoverageStats = z.object({field_name: z.string().min(1).optional(), field_count: z.number().int().optional(), field_coverage: z.number().optional()});

export const coverageStats = z.object({total_items: z.number().int().optional(), total_items_coverage: z.number().optional(), fields: z.array(fieldCoverageStats).optional()});

export const stats = z.object({jobs: jobsStats.optional(), pages: pagesStats, items_count: z.number().int().optional(), runtime: z.number().optional(), status_codes: statusCodesStats, success_rate: z.number().optional(), logs: logsStats, coverage: coverageStats.optional()});

export const spidersStats = z.object({date: z.string(), stats: stats});

export const getApiApiStatsPidSpiderSidResponse = z.array(spidersStats);

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Retrieve stats of all spider jobs in a time range, dates must be in YYYY-mm-dd format.
 * 
 * GET /api/stats/{pid}/spider/{sid}
 */
export const getApiApiStatsPidSpiderSid = async (args: GetApiApiStatsPidSpiderSidArgs, options?: GetApiApiStatsPidSpiderSidOptions) => {
const {baseUrl = "http://127.0.0.1:8000", fetch: fetchFn = fetch, Basic} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (args.offset != null) query.append("offset", String(args.offset))
if (Basic !== undefined) headers.set('authorization', `Basic ${btoa(`${Basic.username}:${Basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/stats/${encodeURIComponent(String(args.pid))}/spider/${encodeURIComponent(String(args.sid))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiApiStatsPidSpiderSidResponse, await res.json())
};